diff --git a/app/Http/Controllers/UsersController.php b/app/Http/Controllers/UsersController.php
index 4fb0c9b99..ceaa5df1b 100644
--- a/app/Http/Controllers/UsersController.php
+++ b/app/Http/Controllers/UsersController.php
@@ -112,7 +112,7 @@ public function createSave(Request $request)
                 $user->sendInvite(true);
             } catch (\Exception $e) {
                 // Admin is allowed to see exceptions
-                \Session::flash('flash_error_floating', $e->getMessage());
+                \Session::flash('flash_error_floating', $e->getMessage().' — '.__('Check mail settings in "Manage » Settings » Mail Settings"'));
             }
         }
 
@@ -390,8 +390,8 @@ public function ajax(Request $request)
 
                         $response['status'] = 'success';
                     } catch (\Exception $e) {
-                        // Admin is allowed to see exceptions
-                        $response['msg'] = $e->getMessage();
+                        // Admin is allowed to see exceptions.
+                        $response['msg'] = $e->getMessage().' — '.__('Check mail settings in "Manage » Settings » Mail Settings"');
                     }
                 }
                 break;
diff --git a/public/js/main.js b/public/js/main.js
index a2d9e6323..f9a3e6f0c 100755
--- a/public/js/main.js
+++ b/public/js/main.js
@@ -3049,7 +3049,7 @@ function userProfileInit()
 						showFloatingAlert('success', Lang.get("messages.invite_sent"));
 					}
 				} else {
-					showAjaxError(response);
+					showAjaxError(response, true);
 				}
 				button.button('reset');
 			},